Railway-signal.



UNITED STATES PATENT OFFICE.

WILLIAM II. wALToN, OERROOKLYN, NEw YORK, AssIeNOR, RY DIRECT ANDI MEsNEASSIGNMENTS, TO wALTON SIGNAL COMPANY, or NEW YORK, N. Y., A CORPORATIONOF NEW YORK. f

RAILWAY-SIGNAL.

SPECIFICATION forming part of Letters Patent No. 715,183, dated December2, 1902.

` Appiiaeon nea May 31,1962. sein No. 109,769. (Numan.)

To a/ZZ whom, t 11i/ty concern:

Be it known that I, WILLIAM HENRY WAL- TON, a citizen of the UnitedStates, residing in Brooklyn, in the county of Kings and State of NewYork, have invented certain new and useful Improvements inRailway-Signals, of which the following is a specification.

My invention is particularly designed for electric railways or otherrailways operating 1o single cars; but it is also capable of applicationto railways having trains of cars. It is also especially intended and.is described hereinafter as applied to a tunnel-road or to thetunnel-section of such a road, but may be also used on other parts of arailway system.

The object of the invention is to enable a car to block the section orportion of track immediately behind it automatically and without the useof mechanical signal-'operating 2o devices.

To this end my invention consists in arranging iixed signal-lamps insuch relation to the track or tracks as to be obscured or hidden by thecar itself from an immediately succeeding car. Preferably the form ofsignal adopted has screens so arranged as to permit the light to beobservable only from the direction of approach Of trains and to hide thelightin the other direction, so that where double tracks are used thelight of one track will not confuse the motorman or engineer whosevehicle is on the adjacent track.

In the accompanying drawings, Figure lis y a plan view of a double-tracktunnel-road to which my invention is applied. Fig. 2 is a longitudinalsectional elevation thereof. Fig. 3 is a transverse sectional elevationof one track of such road to a larger scale. Fig. 4 is a longitudinalsectional elevation, to the 4: same scale as Fig. 3, of a single signaland adjacent devices. y

The tunnel-walls are represented at l and the tracks at 2. Locatedbetween the rails of the track are fixed or immovable signallamps 3,which are maintained constantly lighted and'have a reector 4 so arrangedin relation thereto as to throw their light only toward the oncomingcars of the track in which such signal is placed. The lamps may beelectric, as shown, and lighted from any vment of the cars.

convenient source of electricity or may be oil orgas lamps, as is mostconvenient. As shown in Figs. 3 and 4, the reflector or shield 4 affordsa supporting and containing case or box for the lamp and is fastenedupon the crosstie of the track or separate foundations. The distancebetweenthe lights will depend On local conditions and on the speed ofmove- I have shown in Fig. l an arrangement ot' three of these lights onone track and two on an adjacent track at somewhat more than Aa carslength apart. This is, however, for purpose of illustration only, asthe-lights would preferablybe arranged at considerably greater distancesapart. In operating the rules may require one or more of these lights toappear between the car 5 and the next car 6 in front thereof. It will benoticed that at the right hand of Fig. 1 the car 6 is immediately overone of the signals and will hide it entirely from the car 5, so that themotorman on the latter will see only a single signal, and it is believedto be the best condition OE operation to have at least one signallightshowing between the cars.

In addition to the arrangement of a signal between the rails the signal4a may be arranged alongside of the track, either adjacent to theseveral signals 4 or interspaced therewith. The signals 4a, ifserai-ranged, will, as shown at the right hand of Fig. 1, be so close tothe car as to be hidden from a succeeding car when the car 6 is passing.The lights 4a are, as will be noticed, arranged at the lefthand side ofthe track, which in case of a double-track road, such as shown in Fig.l, will bring all ot' them between the-tracks. For daylight use theinner surface of the reector 4 may be under some conditions and ifpainted an appropriate color-red, for instance-serve as a suiicientsignal device should the lamps 3 be extinguished.

It will be observed that the form of signal device herein described isnot dependent for the proper fulfilment of its function upon 95 theoperation of any movable mechanical devices and is simple and always inorder; also, that either of the arrangement-s herein shown and describedor any equivalent thereof for placing the signals in such relation tothe rco track that they Will be obscuredv by a passing car from thefollowing car is intended to be covered by the broader statements ofclaims hereinafter made.

asucceedingcarortrain and having deflectors arranged to `obscure thesig-nal devices in one direction. Y

3. In a railway-signal, in combination with a track, a xed signal deviceor devices arranged between the rails thereof and projecting into Viewof an approaching car but arranged to be hidden by a car or train from asucceeding car or train on such track.

WILLIAM H. WALTON.

Witnesses:

J. GREEN, HARRY E. KNIGHT.

